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Hong-XiangHong-Xiang
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feature: add COM based picker prototype basic implementation
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‎prototype-workingdir/.gitignore

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‎prototype-workingdir/Directory.Build.props

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<Project/>

‎prototype-workingdir/Directory.Packages.props

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<Project/>

‎prototype-workingdir/Microsoft.Storage.Pickers/FileOpenPicker.cpp

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#include "pch.h"
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#include "FileOpenPicker.h"
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#include "FileOpenPicker.g.cpp"
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#include <windows.h>
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#include <shobjidl.h>
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#include <shobjidl_core.h>
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#include <winrt/Microsoft.UI.Interop.h>
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#include "PickerCommon.h"
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namespace winrt::Microsoft::Storage::Pickers::implementation
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{
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FileOpenPicker::FileOpenPicker(winrt::Microsoft::UI::WindowId const& windowId)
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: m_windowId(windowId)
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{
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}
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winrt::Microsoft::Storage::Pickers::PickerViewMode FileOpenPicker::ViewMode()
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{
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return m_ViewMode;
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}
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void FileOpenPicker::ViewMode(winrt::Microsoft::Storage::Pickers::PickerViewMode const& value)
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{
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m_ViewMode = value;
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}
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hstring FileOpenPicker::SettingsIdentifier()
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{
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return m_SettingsIdentifier;
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}
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void FileOpenPicker::SettingsIdentifier(hstring const& value)
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{
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m_SettingsIdentifier = value;
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}
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winrt::Microsoft::Storage::Pickers::PickerLocationId FileOpenPicker::SuggestedStartLocation()
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{
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return m_PickerLocationId;
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}
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void FileOpenPicker::SuggestedStartLocation(winrt::Microsoft::Storage::Pickers::PickerLocationId const& value)
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{
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m_PickerLocationId = value;
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}
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winrt::hstring FileOpenPicker::CommitButtonText()
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{
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return m_commitButtonText;
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}
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void FileOpenPicker::CommitButtonText(winrt::hstring const& value)
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{
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m_commitButtonText = value;
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}
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winrt::Windows::Foundation::Collections::IVector<hstring> FileOpenPicker::FileTypeFilter()
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{
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return m_fileTypeFilter;
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}
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struct FileOpenPickerParameters {
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winrt::hstring CommitButtonText;
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winrt::hstring SettingsIdentifierId;
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PickerLocationId PickerLocationId;
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std::vector<winrt::hstring> FileTypeFilterData{};
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std::vector<COMDLG_FILTERSPEC> FileTypeFilterPara{};
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HWND HWnd;
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void ConfigureDialog(winrt::com_ptr<IFileOpenDialog> dialog) {
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PickerCommon::ConfigureDialogCommon(dialog, CommitButtonText, SettingsIdentifierId, PickerLocationId);
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check_hresult(dialog->SetFileTypes(FileTypeFilterPara.size(), FileTypeFilterPara.data()));
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}
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};
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void FileOpenPicker::CaptureParameters(FileOpenPickerParameters& parameters) {
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parameters.CommitButtonText = m_commitButtonText;
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parameters.SettingsIdentifierId = m_SettingsIdentifier;
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parameters.PickerLocationId = m_PickerLocationId;
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for (size_t i = 0; i < m_fileTypeFilter.Size(); i++)
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{
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parameters.FileTypeFilterData.push_back(m_fileTypeFilter.GetAt(i));
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parameters.FileTypeFilterPara.push_back({ L"", parameters.FileTypeFilterData[i].c_str() });
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}
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parameters.HWnd = winrt::Microsoft::UI::GetWindowFromWindowId(m_windowId);
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}
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winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::Storage::StorageFile> FileOpenPicker::PickSingleFileAsync()
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{
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FileOpenPickerParameters parameters{};
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CaptureParameters(parameters);
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co_await winrt::resume_background();
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auto cancellationToken = co_await winrt::get_cancellation_token();
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if (cancellationToken())
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{
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co_return nullptr;
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}
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// TODO: should we initialize COM?
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// wil::com_initialize_ex initializeCom{ COINIT_APARTMENTTHREADED };
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auto dialog = create_instance<IFileOpenDialog>(CLSID_FileOpenDialog, CONTEXT_ALL);
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parameters.ConfigureDialog(dialog);
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auto hr = dialog->Show(parameters.HWnd);
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if (FAILED(hr) || cancellationToken())
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{
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co_return nullptr;
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}
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winrt::com_ptr<IShellItem> shellItem{};
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check_hresult(dialog->GetResult(shellItem.put()));
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auto& file = co_await PickerCommon::CreateStorageFileFromShellItem(shellItem);
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if (cancellationToken())
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{
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co_return nullptr;
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}
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co_return file;
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}
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winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::Foundation::Collections::IVectorView<winrt::Windows::Storage::StorageFile>> FileOpenPicker::PickMultipleFilesAsync()
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{
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FileOpenPickerParameters parameters{};
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CaptureParameters(parameters);
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co_await winrt::resume_background();
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winrt::Windows::Foundation::Collections::IVector<winrt::Windows::Storage::StorageFile> results{ winrt::single_threaded_vector<winrt::Windows::Storage::StorageFile>() };
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auto cancellationToken = co_await winrt::get_cancellation_token();
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if (cancellationToken())
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{
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co_return results.GetView();
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}
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auto dialog = create_instance<IFileOpenDialog>(CLSID_FileOpenDialog, CONTEXT_ALL);
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parameters.ConfigureDialog(dialog);
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auto pickerOptions = FOS_ALLOWMULTISELECT;
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check_hresult(dialog->SetOptions(pickerOptions));
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auto hr = dialog->Show(parameters.HWnd);
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if (FAILED(hr) || cancellationToken())
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{
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co_return results.GetView();
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}
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winrt::com_ptr<IShellItemArray> shellItems{};
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check_hresult(dialog->GetResults(shellItems.put()));
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DWORD itemCount = 0;
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check_hresult(shellItems->GetCount(&itemCount));
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winrt::com_ptr<IShellItem> shellItem{};
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for (auto i = 0; i < itemCount; i++) {
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check_hresult(shellItems->GetItemAt(i, shellItem.put()));
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auto& file = co_await PickerCommon::CreateStorageFileFromShellItem(shellItem);
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results.Append(file);
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}
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if (cancellationToken())
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{
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results.Clear();
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co_return results.GetView();
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}
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co_return results.GetView();
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}
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}

‎prototype-workingdir/Microsoft.Storage.Pickers/FileOpenPicker.h

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#pragma once
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#include "FileOpenPicker.g.h"
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namespace winrt::Microsoft::Storage::Pickers::implementation
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{
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struct FileOpenPickerParameters;
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struct FileOpenPicker : FileOpenPickerT<FileOpenPicker>
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{
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FileOpenPicker(winrt::Microsoft::UI::WindowId const& windowId);
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winrt::Microsoft::Storage::Pickers::PickerViewMode ViewMode();
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void ViewMode(winrt::Microsoft::Storage::Pickers::PickerViewMode const& value);
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hstring SettingsIdentifier();
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void SettingsIdentifier(hstring const& value);
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winrt::Microsoft::Storage::Pickers::PickerLocationId SuggestedStartLocation();
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void SuggestedStartLocation(winrt::Microsoft::Storage::Pickers::PickerLocationId const& value);
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winrt::hstring CommitButtonText();
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void CommitButtonText(winrt::hstring const& value);
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winrt::Windows::Foundation::Collections::IVector<hstring> FileTypeFilter();
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winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::Storage::StorageFile> PickSingleFileAsync();
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winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::Foundation::Collections::IVectorView<winrt::Windows::Storage::StorageFile>> PickMultipleFilesAsync();
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private:
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winrt::Microsoft::UI::WindowId m_windowId{};
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winrt::hstring m_SettingsIdentifier{};
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PickerLocationId m_PickerLocationId{ PickerLocationId::Unspecified };
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winrt::hstring m_commitButtonText{};
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PickerViewMode m_ViewMode{ PickerViewMode::List };
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winrt::Windows::Foundation::Collections::IVector<hstring> m_fileTypeFilter{ winrt::single_threaded_vector<hstring>() };
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void CaptureParameters(FileOpenPickerParameters& parameters);
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};
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}
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namespace winrt::Microsoft::Storage::Pickers::factory_implementation
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{
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struct FileOpenPicker : FileOpenPickerT<FileOpenPicker, implementation::FileOpenPicker>
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{
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};
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}

‎prototype-workingdir/Microsoft.Storage.Pickers/FileSavePicker.cpp

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#include "pch.h"
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#include "FileSavePicker.h"
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#include "FileSavePicker.g.cpp"
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#include <windows.h>
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#include <shobjidl.h>
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#include <shobjidl_core.h>
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#include <KnownFolders.h>
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#include <wil/cppwinrt.h>
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#include <wil/com.h>
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#include <wil/resource.h>
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#include <Microsoft.Ui.Xaml.Window.h>
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#include <winrt/Microsoft.UI.Interop.h>
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#include <winrt/Windows.Foundation.Collections.h>
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#include "PickerCommon.h"
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namespace winrt::Microsoft::Storage::Pickers::implementation
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{
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FileSavePicker::FileSavePicker(winrt::Microsoft::UI::WindowId const& windowId)
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: m_windowId(windowId)
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{
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}
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hstring FileSavePicker::SettingsIdentifier()
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{
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return m_SettingsIdentifier;
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}
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void FileSavePicker::SettingsIdentifier(hstring const& value)
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{
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m_SettingsIdentifier = value;
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}
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winrt::Microsoft::Storage::Pickers::PickerLocationId FileSavePicker::SuggestedStartLocation()
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{
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return m_PickerLocationId;
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}
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void FileSavePicker::SuggestedStartLocation(winrt::Microsoft::Storage::Pickers::PickerLocationId const& value)
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{
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m_PickerLocationId = value;
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}
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hstring FileSavePicker::CommitButtonText()
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{
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return m_commitButtonText;
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}
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void FileSavePicker::CommitButtonText(hstring const& value)
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{
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m_commitButtonText = value;
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}
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winrt::Windows::Foundation::Collections::IMap<hstring, winrt::Windows::Foundation::Collections::IVector<hstring>> FileSavePicker::FileTypeChoices()
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{
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return m_fileTypeChoices;
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}
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hstring FileSavePicker::DefaultFileExtension()
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{
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return m_defaultFileExtension;
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}
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void FileSavePicker::DefaultFileExtension(hstring const& value)
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{
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m_defaultFileExtension = value;
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}
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winrt::Windows::Storage::StorageFile FileSavePicker::SuggestedSaveFile()
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{
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return m_suggestedSaveFile;
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}
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void FileSavePicker::SuggestedSaveFile(winrt::Windows::Storage::StorageFile const& value)
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{
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m_suggestedSaveFile = value;
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}
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hstring FileSavePicker::SuggestedFileName()
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{
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return m_suggestedFileName;
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}
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void FileSavePicker::SuggestedFileName(hstring const& value)
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{
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m_suggestedFileName = value;
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}
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struct FileOpenPickerParameters {
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HWND HWnd;
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winrt::hstring CommitButtonText;
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winrt::hstring SettingsIdentifierId;
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PickerLocationId PickerLocationId;
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void ConfigureDialog(winrt::com_ptr<IFileOpenDialog> dialog) {
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PickerCommon::ConfigureDialogCommon(dialog, CommitButtonText, SettingsIdentifierId, PickerLocationId);
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}
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};
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winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::Storage::StorageFile> FileSavePicker::PickSaveFileAsync()
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{
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throw hresult_not_implemented();
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}
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}

‎prototype-workingdir/Microsoft.Storage.Pickers/FileSavePicker.h

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#pragma once
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#include "FileSavePicker.g.h"
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namespace winrt::Microsoft::Storage::Pickers::implementation
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{
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struct FileSavePickerParameters;
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struct FileSavePicker : FileSavePickerT<FileSavePicker>
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{
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FileSavePicker(winrt::Microsoft::UI::WindowId const& windowId);
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hstring SettingsIdentifier();
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void SettingsIdentifier(hstring const& value);
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winrt::Microsoft::Storage::Pickers::PickerLocationId SuggestedStartLocation();
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void SuggestedStartLocation(winrt::Microsoft::Storage::Pickers::PickerLocationId const& value);
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hstring CommitButtonText();
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void CommitButtonText(hstring const& value);
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winrt::Windows::Foundation::Collections::IMap<hstring, winrt::Windows::Foundation::Collections::IVector<hstring>> FileTypeChoices();
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hstring DefaultFileExtension();
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void DefaultFileExtension(hstring const& value);
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winrt::Windows::Storage::StorageFile SuggestedSaveFile();
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void SuggestedSaveFile(winrt::Windows::Storage::StorageFile const& value);
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hstring SuggestedFileName();
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void SuggestedFileName(hstring const& value);
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winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::Storage::StorageFile> PickSaveFileAsync();
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private:
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winrt::Microsoft::UI::WindowId m_windowId{};
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hstring m_SettingsIdentifier{};
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PickerLocationId m_PickerLocationId{ PickerLocationId::Unspecified };
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hstring m_commitButtonText{};
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hstring m_defaultFileExtension{};
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winrt::Windows::Storage::StorageFile m_suggestedSaveFile{ nullptr };
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hstring m_suggestedFileName{};
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winrt::Windows::Foundation::Collections::IMap<hstring, winrt::Windows::Foundation::Collections::IVector<hstring>> m_fileTypeChoices{ winrt::single_threaded_map<hstring, winrt::Windows::Foundation::Collections::IVector<hstring>>() };
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void CaptureParameters(FileSavePickerParameters& parameters);
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};
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}
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namespace winrt::Microsoft::Storage::Pickers::factory_implementation
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{
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struct FileSavePicker : FileSavePickerT<FileSavePicker, implementation::FileSavePicker>
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{
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};
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}

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